NDLI: A Hybrid Strategy of Location Database Clustering and Dynamic Hierarchical Caching in PCS Networks

Content Provider	IEEE Xplore Digital Library
Author	Liang Hong Yansheng Lu Qiong Wei Jun Liu Qiang Lou
Copyright Year	2006
Description	Author affiliation: Sch. of Comput. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan (Liang Hong; Yansheng Lu; Qiong Wei; Jun Liu; Qiang Lou)
Abstract	The location database (LDB) organization has much impact on the performance of personal communication services (PCS) network. In order to optimize the LDB organization, users' moving and calling patterns should be considered together. In this paper, we propose a hybrid strategy of location database clustering and dynamic hierarchical caching for a hierarchical database structure in PCS network. The main goal of our strategy is to reduce the cost of location management and network signaling traffic of data access and communication. The strategy consists of two steps: (1) clustering location databases based on users' moving patterns in the system; (2) arranging the clusters and then caching the users' location information of the adjacent cluster at each cluster's representative node based on users' calling patterns. A threshold required for beneficial caching is used to determine whether to cache. Through experimental simulation, the comparison results demonstrate that our strategy can result in total cost reduction
Starting Page	1
Ending Page	4
File Size	274223
Page Count	4
File Format	PDF
ISBN	1424405173
DOI	10.1109/WiCOM.2006.400
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Databases Clustering algorithms Telecommunication traffic Traffic control Cost function Computer networks Personal communication networks Computer network management Mobile computing
Content Type	Text
Resource Type	Article

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